2023
|
P/S
|
Ceiling fans; ventilating fans
Electric fans; ventilating fans for commercial and industrial use;... |
2022
|
P/S
|
HVAC units; HVAC equipment. |
2020
|
P/S
|
Gas-fired space heating appliances. |
2017
|
Invention
|
System and method for charging a refrigeration system. A method for charging a field refrigeratio... |
2016
|
Invention
|
Refrigerant charge management in a heat pump water heater.
Heat pumps that heat or cool a space ... |
|
P/S
|
Printed publications, namely, training manuals for heating, ventilating, and air conditioning (HV... |
2015
|
Invention
|
Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and ... |
|
Invention
|
Refrigerant charge and control method for heat pump systems.
A heat pump system comprises a comp... |
|
Invention
|
Air conditioning system having actively controlled and stabilized hot gas reheat circuit. A metho... |
2014
|
Invention
|
Thaw cycle in condensing style gas furnaces.
A condensing gas furnace having an inducer for draw... |
|
Invention
|
Refrigerant charge management in a heat pump water heater. Heat pumps that heat or cool a space a... |
|
Invention
|
Tubing joint.
A method of joining two tubular sections including applying adhesive to a male end... |
2013
|
Invention
|
Defrosting a heat exchanger in a heat pump by diverting warm refrigerant to an exhaust header. He... |
2012
|
P/S
|
air conditioners, air handlers, furnaces, heat pumps, and evaporator coils for heating, ventilati... |
|
Invention
|
Heat pump with improved defrost cycle and method of defrosting a heat exchanger.
Heat pumps with... |
2011
|
Invention
|
Condensing gas package unit with a tubular conduit for passing a condensate drain line. Air condi... |
2010
|
Invention
|
Hvac control using discrete-speed thermostats and run times. Methods of controlling air condition... |
|
Invention
|
Premix furnace and methods of mixing air and fuel and improving combustion stability. Premix furn... |
2009
|
P/S
|
HVAC units, namely, Unit Heaters, Air Turnover Heaters, Blower Cabinets for Heaters, Condensing U... |
2008
|
P/S
|
air conditioners, furnaces and heat pumps sold exclusively through licensed HVAC contractors |
|
P/S
|
Replacement parts for furnaces, HVAC units, and air-conditioning, air cooling and ventilation app... |
2007
|
P/S
|
Heating and air conditioning system components, namely, blower motors for furnaces and air handlers |
|
P/S
|
Heating and air conditioning systems comprising packaged air conditioning and heat pump units and... |
|
Invention
|
Temperature control in variable-capacity hvac system. Relatively constant temperatures are mainta... |
|
Invention
|
System and method for controlling an air conditioner or heat pump. A control procedure operates a... |
|
Invention
|
Ventilation airflow rate control. Airflow rates within a ventilation system are controlled using ... |
2006
|
P/S
|
Air conditioners featuring built-in inverters and thermostat controllers and replacement parts th... |
|
P/S
|
Adaptive furnace igniter controls. |
|
P/S
|
Distributorship services in the field of replacement parts for heating and cooling apparatus. |
|
P/S
|
Metal chimneys. Oil, gas and electric furnaces, including those for mobile homes and travel trail... |
|
P/S
|
Power oil gun furnaces; power gas gun furnaces; atmospheric gas furnaces; electric furnaces; gun-... |
|
P/S
|
Furnaces, Air Conditioners, Heat Pumps and Parts Therefor |
2003
|
P/S
|
Air conditioners, furnacers and heat pumps sold exclusively through licensed HVAC contractors |
2002
|
P/S
|
Adaptive Furnace Igniter Controls |
1991
|
P/S
|
computer programs for use in the fields of heating, ventilating and air conditioning |
1988
|
P/S
|
FURNACES, [ BASEBOARD HEATERS, WATER HEATERS,] AIR CONDITIONERS AND COMPONENTS THEREFOR |
1983
|
P/S
|
Power Oil Gun Furnaces; Power Gas Gun Furnaces; Atmospheric Gas Furnaces; Electric Furnaces; Atmo... |
1969
|
P/S
|
OIL, GAS AND ELECTRIC FURNACES, INCLUDING THOSE FOR MOBILE HOMES AND TRAVEL TRAILERS, METAL CHIMN... |
1947
|
P/S
|
HEATING FURNACES [ AND STOVES ], CONSOLE HEATERS, [ FIREPLACE HEATERS, ] UNIT HEATERS, CIRCULATI... |